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公开(公告)号：US10744492B2
公开(公告)日：2020-08-18
申请号：US15802766
申请日：2017-11-03
Applicant: UOP LLC
Inventor： Stephen R. Caskey , Munish Kumar Sharma , Jayant K. Gorawara , Pijus Kanti Roy , Frank S. Modica
Abstract: A process is provided for removing contaminants from olefin containing C4 streams. The streams are contacted with an X based zeolite adsorbent comprising greater than 88% X zeolite at a SiO2/Al2O3 ratio of less than 2.5 and an alkali metal salt present in excess of an amount required to achieve full exchange of cation sites on the X based zeolite. The resulting alkali oxide on a volatile free basis is less than 1% (by mass) of the X based adsorbent. The contaminants that are removed include sulfur, oxygenate, and nitrogen based contaminants.
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公开(公告)号：US20200023341A1
公开(公告)日：2020-01-23
申请号：US15802766
申请日：2017-11-03
Applicant: UOP LLC
Inventor： Stephen R. Caskey , Munish Kumar Sharma , Jayant K. Gorawara , Pijus Kanti Roy , Frank S. Modica
Abstract: A process is provided for removing contaminants from olefin containing C4 streams. The streams are contacted with an X based zeolite adsorbent comprising greater than 88% X zeolite at a SiO2/Al2O3 ratio of less than 2.5 and an alkali metal salt present in excess of an amount required to achieve full exchange of cation sites on the X based zeolite. The resulting alkali oxide on a volatile free basis is less than 1% (by mass) of the X based adsorbent. The contaminants that are removed include sulfur, oxygenate, and nitrogen based contaminants.
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